code: def test_uncompressed(mode, size, test_file):
      """Check uncompressed images can be opened"""
  
      with Image.open(test_file) as im:
          assert im.format == "DDS"
          assert im.mode == mode
          assert im.size == size
  
          assert_image_equal_tofile(
              im, test_file.replace(".dds", ".png")
          )
  
imports: from __future__ import annotations
  from io import BytesIO
  import pytest
  from PIL import DdsImagePlugin, Image
  from .helper import assert_image_equal, assert_image_equal_tofile, hopper
label_desc: Use image node_id 13 for calling a global function with example usage: test_uncompressed(mode, size, test_file) without return types